Header Performance??

Can anyone speak for actual gains from a 4/2/1 header on a D15B7 ?

Thanks

on that unless motors worked to hell and backed up next to nadda.

for price of a good header you could do mini me cam + gear so many other things i'd rather do

A header does not actually result in a gain of power, it frees up power that's already there. Same goes for an exhaust or intake and many other minor mod's. Power adder's such as Nitrous, Turbo, or super charger ADD power.

I agree with Ace, next to nothing will be improved with a header alone.